Valve



(No Model.) 2 Sheets-Sheet 1.

H. H. BURRITT. VALVE.

No. 515,514. Patented Feb. 27, I894;

WITNESSES: INVENTUR'. W H; ii,

BY Am.

114: NATGNAL Lmmaaumma COMPANY. wmsmmarou, n. c.

(No Model.)

VALVE.

Patented Feb. 2'7, 1894.

INVENTOB JIM/M Harri R93 HQ 11177771561),

ATT'Y.

tn: Nmnomu. UYMOGIAPMSNO OOMFANY.

won. 6. m

UNITED STATES rricn.

PATENT HARVEY H. BURRITT, OF NEWARK, NEW JERSEY, ASSIGNOR TO THE BUR-RITT MANUFACTURING COMPANY, OF NEW JERSEY.

VALVE.

SPECIFICATION forming part of Letters Patent No. 515,514, dated February27, 1894.

Applicationfiledil'uly 28,1893. Serial Ila-481,697, (No model.)

To all whom may concern.-

Be it known that I, HARVEY H. Buninrtr, a citizen of the United States,residing at New ark, in the county of Essex and State of New 5 Jersey,have invented certain new and useful Improvements in Valves; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

lily present invention has for its primary 1 5 ob ect to provide a valvein whicl1,by a slight movement, after the valve is closed, the valvedisks are brought to firmly bear against their valve seats, whereby thevalve is securely closed.

The invention therefore consists in the general construction of valveherein set forth, as a new article of manufacture, and also in certamnovel arrangements and combinations of parts, such as will behereinafter more fully set forth and finally embodied in the clauses ofthe claim.

In the drawings herewith accompanying,

Figure l is an end view of myimproved form of valve. Fig. 2 isalongitudinal vertical section of the same, and Fig. 3 is a horizontalsection of the valve, taken on line 3-3 in said Fig. 2. Fig. 4 is a viewof one side of one of the valve disks, and Fig. 5 is a vertical sectionof the same, taken on line 55 in 5 said Fig. 4.. Fig. 6 is a side viewof a yoke or cross-bar used in connection with the valve disks in mypresent form of construction of valve. Fig. 8 an end view of said yokeor cross bar.

Similar letters of reference are employed in each of the above describedviews to indisaid perforation or opening b of the cap I) is rotativelyarranged a valve stem 0 provided on its lower portion with ascrew-threaded Fig. 7 is a top view of the same, and

portions. On said valve stem and loosely arranged in said enlargedportion 19 of said opening or perforation b, is an enlargement or collar0 formed integral with said valve 53 stem, or said enlargement or collar0 maybe made in the form of a ring which is slipped upon the stem 0 andthen secured thereto in any convenient manner, as will be clearlyunderstood. Secured to said cap I) by means of suitable bolts (1, seeFig. 1, is a perforated plate (1 provided with the usual form of stoningbox d through which projects the end 0 of the valve stem for raising orlowering the valve disks and thereby opening or closing the valve. Saidplate d which is secured to the top of said hollow cap 1), forms, withsaid enlarged portion 5 of the opening I), a chamber in which saidcollar 0 on the valve Stem is retained, but is free to rotate therein.This allows of the valve stem 0 to be freely turned in either direction,but prevents the stem from moving upward or downward and holds the stemat all times in its proper position. On the lower end of saidscrew-threaded valve stem 0, I have arranged a screw-threaded sleeve fprovided with a square or angular flange f. In said valve casing a, aswill be seen from Figs. 2 and 8, are arranged the valve disks e and e,each of which is formed on its inner surface, with the inwardlyprojecting flange e substantially as illustrated more especially in Fig.4. Said flanges are provided at the bottom with the grooved portions aand at the top with the grooved portions e and the recessed portions awhich portions e and e when the said valve disks are in position in thevalve case, form openings for the valve stem 0, while the flange f onthe sleeve f fits into the recessed portions e which prevent said sleevefrom turning with said screw 0, and, when the valve stem is turned, saidsleeve which moves up and down upon the screw-thread of the said stein,causes the valve disks 6 and e to be" raised 5 or lowered, as the casemay be. Each valve disk is provided with a suitable ring e, ofnon-corrosive metal, which forms the face of the disk, said rings acoming in close contact with rings a. in said valve case, as will be :00clearly seen from Fig. 3.

Each valve disk e and c is provided with suitable lugs e which inclinetoward the botterm, as will be evident from Figs. 2 and 5, and arehollowed to form an oblong recess 6 in each, as shown more especially inFig. 4. Arranged between said valve disks e and e is a yoke or cross barg, as clearly shown in Fig. 3, and said yoke or cross bar is providedwith a central longitudinal rib g having a centrally arranged opening orhole, as shown in Fig. 7. Near both ends of said rib g are oppositelyprojecting arms g from which extend longitudinally with said rib gsuitable supports g Between said arms g and the collar 9 formedaroundsaid central opening in said yoke or cross bar 9 are arranged theinclined webs or portions 9 as is clearly shown in the plan view in Fig.7, and as is indicated in dotted outline in Fig. 8. In said valve case aare two oppositely placed lugs 01' ears 0t and a, as clearly shown inFigs. 1 and 3, and the purpose of which will be more clearly describedhereinafter. Loosely and movably arranged in said oblong recesses insaid lugs e and riding on the said inclined webs g of said yoke or crossbar g, are small balls or rollers h, as indicated in dotted outline inFigs. 1 and 2, which balls or rollers are made of any suitable hardmetal, and may be tempered and coppered to prevent them from rusting.

The operation of the device is as follows: When the valve is closed, asis clearly shown in Fig. 2, said supports 9 of the cross bar or yoke grest upon the lugs or ears a and a in the valve casing, while the ballsor rollers h are tightly wedged in between the inclined webs g of thesaid cross bar or yoke and the recesses e in each disk e and e. Now,when the valve stem 0 is turned to raise the valve disks, said sleeve fmoves upwardly on the screw-thread c, wherebysaid plates are raised, andby bringing the edges e of the herein above mentioned flanges e incontact with the lower edges of the supports 9 on the bar or yoke g, thelatter is raised with the disks 6 and'e' to a position within thechambered cap 1), thereby permitting a free passage for the water orother liquid to be conveyed through the valve, as will be clearlyunderstood. When the valve stem is turned to close the valve, said diskse and e and also the yoke or bar g move downwardly, and when the diskshave been lowered to such a point that they nearly close the openings aand a in the valve case a, the supports 9 on said bar or yoke will comein contact with the lugs a 'and a in the valve case, thus holding saidbar or yoke in this position. At the same time the disks are permittedto travel still further in their downward course, but said balls orrollers h in the oblong recesses a will ride on said inclined webs g ofthe bar or yoke g, whereby said valve disks eand e are forced forwardlyin opposite directions, causing their facing rings 9 to closely bindagainst the rings a in the valve easing a, whereby the valve is firmlyclosed. Of course it will are less liable to rust and stick when thevalve has not been used for some time. It will thus be seen that themechanism is extremely simple and not liable to get out of order, andthe several parts can be easily removed for repairs, when necessary.

Of course it will be evident that certain changes in the arrangement andcombinations of parts may be made without departing from the scope of myinvention, and I therefore do not wish to limit my invention to theexact form and construction of valve herein shown.

The mechanism herein shown and described is especially well adapted fordifferent classes of valves and especially gate valves, and is also welladapted for the use of valves in bydrants.

Having thus described my invention, what I claim is 1. In a valve, thecombination, with the chamber thereof, of the two-part valve, consistingof valve disks 6 and 6', each provided with a pair of downwardlyinclining lugs having oblong recesses therein, balls or rollers in saidrecesses, and a bar or yoke between said disks, said bar or yoke havinga central opening formed by a collar gfilongitudinally arranged ribsextending on opposite sides from said collar, anda pair of inclined websg on each side of said ribs, against which said balls or rollers ride,substantially as and for the purposes set forth.

2. In a valve, the combination, with the chamber thereof, of thetwo-part valve disks 6 and e, each provided with a pair of downwardlyinclining lugs having oblong recesses therein, balls or rollers" in saidrecesses, and a yoke or bar between said valve-disks, have ing inclinedribs against which said balls or rollers ride, substantially as and forthe purposes set forth.

3. In avalve, in combination,with the valve case, provided withoppositely placed lugs or ears a and a a screw-threaded valve stem, apair of valve disks, a yoke or bar between said disks adapted to besupported by said lugs or ears a and a, when the valve is closed, andsaid bar or yoke being adapted to be raised bysaid disks when the valveis being opened, and means on said bar or yoke and said valve disks forforcing said valve disks forward in opposite directions when the valveis nearly closed, said means consisting essentially of inclinedlugs onsaid valve disks,having oblong recesses, balls or rollers in saidrecesses, and inclined webs on said bar or yoke,

against which said balls or rollers ride, sub-- stantially as and forthe purposes set forth.

4. The herein described valve, comprising therein a valve casing a, achambered cap I),

a screw-threaded stem 0, a sleeve f having a IIO flange f, valve disks eand e engaging with said flanged sleeve f and adapted to be raisedthereby when said valve stem is turned, and means, connected with saidvalve disks for forcing said disks forward in opposite directions whenthe valve is nearly closed,said means consisting essentially of inclinedlugs on said valve disks, having oblong recesses,

balls or rollers in said recesses, and a bar or yoke 9 having inclinedwebs against which said balls 01'. rollers ride, substantially as andfor the purposes set forth.

5. The herein described valve, comprising therein a valve casing a, achambered cap I), a screw-threaded stem 0, a sleeve f having a flange f,lugs a and a in said valve casing, valve disks 6 and e engaging withsaid flanged sleeve f adapted to be raised thereby when said valve stemis turned, a yoke or bar be- 20 tween said valve disks adapted to besupported by said lugs a and a", when the valve is closed and said baror yoke being adapted to be raised by said disks when the valve is beingopened, and means on said bar or yoke and said valve disks for forcingsaid valve disks forward in opposite directions when the valve is nearlyclosed, said means consisting essentially of inclined lugs on said valve

